 /**
   * 底部栏
   */
  .bottom {
    background-color: black;

  }

  .bottom_img {
    width: 30px;
  }

  .bottom_footer-font {
    color: whitesmoke;
  }

  .bottom_about-us {
    display: flex;
    padding-top: 20px;
    padding-bottom: 20px;
    font-size: 10px;
  }

  .bottom_aboutUs {
    margin-left: 20px;
  }

  .bottom_company-beian {
    font-size: 12px;
    margin-left: 500px;
  }

  .bottom_contact-us {
    display: flex;
    padding-bottom: 20px;
  }

  .bottom_company-account {
    margin-left: 20px;
  }

  .bottom_logo {
    margin-left: 10px;

  }

  .bottom_company-certificate {
    font-size: 12px;
    margin-left: 520px;
  }
